Following on from the previous instalment in which I made and silver soldered the Vee’s together. The vee was assembled in with the other rails in the Fast Tracks 0n3 #4 left hand jig.
The PCB ties would only be here temporarily to fold the rails in the correct orientation so no great effort was made to get fantastic solder joints. Also, this being a stub turnout the switch rails don’t extend all the way to the blades.
Once soldered the skeleton turnout was lifted from the aluminium jig. It was turned upside down and had bits of waste etch from kits soldered across the rails in the gaps between the ties so as to hold the rails in place without relying on the ties. Most of these were intended to be temporary but those holding the check rails to the stock rails and a pair binding each switch rail to its stock rail were permanent.
Back in episode 11 I detailed some mods I have made to jigs for producing the rail for the common crossing (the vee, frog etc) and blades for point work on The Brymston RR. The mods to the soldering jig were done because I mentioned that I intended to silver solder the Vees.
A number of comments here and on other fora were concerned that silver solder requires a higher temperature than the melting point of aluminium that the jigs are made of.
Many other things have got in the way of a practical test until today but whilst I couldn’t put my finger on the right techno babble to allay their concerns I thought they were worrying unnecessarily.
Today I silver soldered some vees without a problem and the reason it isn’t a problem and why my jigs aren’t a dribbly mess is down to mass. The jig is a bloody great big lump of aluminium which is a great heat sink. It holds the part of the rail to be soldered in clear air away from the aluminium. Added to that the heat source whilst intense is tiny.
I have now silver soldered a number of vees together and used two methods of heating. The early attempts clamped up the vee and I then added silver solder paste in to the vee. This left some surface contamination. Whilst they cleaned up nicely I wondered if it could be avoided. In this first video I have the rails clamped in place but first I applied silver solder paint to the inside faces.
Now for those worrying about the aluminium note that some liquid that is in the recess behind the joint doesn’t even get hot enough to boil away. Straight after soldering it looks a little charred but that all cleans off. From the jig the vee goes in a jar of pickle solution to clean it up, then rinsed in clean water and it cleans up to shiny metal.
Then I had an idea and wondered if resistance really was futile. Ok, so I only used that line so I could post a picture of 7 of 9. [I wonder if it occurred to The Borg that if they had all looked like 7 of 9 they’d have had a lot less bother assimilating half of the population].
What I was really wondering was if my resistance soldering unit would get the vee hot enough. Its a pretty small cross section and for soft soldering I never use it on full power anyway. Only one way to find out. Give it a go.
Well, that worked better than expected. Afterwards I noted that the very sharp end of the vee had opened slightly but I reckon either a clip or less pressure on the probes will sort that. That said there isn’t a lot to choose between fire or resistance methods for doing the vees. On other modelling projects the resistance method may be better because it only heats where your joint is as the flame is a bit wider.
Why silver solder. As you have seen it needs the bits to be red hot to solder. It will need that temperature to come undone so any amount of soft soldering I do to add other details isn’t going to cause this joint to come undone.
After the last post discussing applying a name and how to do it things moved very quickly.
Posting the blog to the NGRM forum came up with a few suggestions as to how to do it and the one I went with was a recommendation to use Vinyl Lettering Online UK.
A quick visit late that same night with the intention of ‘just having a look’ turned into an order and two days later the lettering turned up with postie.
Two of the inmates
A quick burst of painting the surround black prepared for adding the lettering. It is one of those jobs you start with considerable trepidation and then wonder what all the fuss was about.
The lettering comes as a sheet, mine was rolled in a tube. On the layout you lay it out and get it all lined up securing it in place with masking tape in several places. You then remove the tape at one end and peel the backing away. Then you press the remaining tape down firmly on to your surface. You do need to press firmly with a hard tool to make sure that the lettering sticks to your surface. You can see a subtle change in colour as it is pressed firmly. You then peel the front tape away making sure it leaves the lettering behind. If it starts to lift a letter changing the angle you pull at sorts that. With the front tape off you’re left with your lettering properly aligned and spaced. Probably as a hang over from using press down transfers I put a sheet of plain paper over the letters and gave them another firm press.
A very brief update this one and a request for suggestions on how to do something.
Following on from yesterday’s Perspex screen post it got me thinking about the presentation of the module and the need for its name to be displayed. When it is all assembled the pelmet gives a front facing depth of 65mm, so, what I envisage is white lettering on painted black background. Letters about 50mm high.
I have been playing with fonts and as it was a mandated font for Railroads to use I was thinking it should be in Railroad Roman.
That said there is some leeway as there were umpteen versions of it with some railroads customising their own version.
A silly bit of me thinks it should be in the D&RGW Flying Grande style
That would be silly as my D&RGW engines won’t be allowed on this bit of the layout as I doubt they’ll get past the first switch.
I suppose another alternative would be to use a Stencil as things were often lettered with them
My question for you all is how to do the lettering in a professional looking way. That rules out me hand painting it or using stick on house letters as I’ll never get them on straight.
Here is a problem #1. I am a poorly disciplined messy bugger. By that I mean that I put things down intending to put them away later but never get round to that putting away part.
I am fortunate enough to have what Annie tells me would be the master bedroom if we were selling (we’re not) as it’s the biggest as my model room. I always envisaged filling it with a large 0n3 layout but inevitably most of the space has been taken over with workstations for EDM Models business.
The desire to get something done layout wise resulted in the modular approach to the Brymston RR as described in these blog posts. If the layout grows further, it will probably be in the form of connected modules.
Here is a problem #2.The layout is immediately on your left as you enter my model room and currently presents a large flat surface not unlike a shelf.
Consequence: The layout is inevitably covered in stuff I carried up stairs and needed to put down. Clearing it up just makes it available for the next load of stuff I need to put down.
As I get on to track laying this has to change!
Result:The layout now has a removeable Perspex screen on the front and the exposed end.
The Brymston RR doing a shelf impression
For the initial installation the Perspex has had two keyhole type slots cut in it and it hangs on two screws poking out of the pelmet. I think this may well develop in to a magnet based solution as the screws sticking out are bound to attack a passing shoulder.
Future:The Perspex came wrapped in two sheets of thin plywood of the same size so I am currently doodling using them to make an easily removeable peaked roof. Peaked because a flat one would just be a higher shelf
If getting the frames are the parent/birth of a loco then I guess that means I have started a new project and Jack is born.
The full story isn’t quite as simple as that.
In 2015 Brian Wilson wrote a series of articles about producing a 7/8 scale model of Hunslet locomotive Jack which was built for John Knowles Metal Box Limited of Ashby de la Zouch who made firebricks.
The articles aimed to produce a model based on Roundhouse parts with other bits fabricated as required. The articles caught the imagination because a range of castings to replace the fabrications plus other etched part (Cab) were produced by third parties. I have always liked these loco’s and the very similar locos produced for munitions factories and used on the Sand Hutton Light Railway and I was enthused enough to decide that one day I would build one. That is usually the kiss of death for a project but then an act of chance occurred. Someone like me had decided to build one but they had gone a bit further and acquired many of the parts. They then went a bit further, decided they would never get round to it and offered the parts for sale. I pounced and thus got most of the third party parts for less than cost and then didn’t have to chase around multiple suppliers to get them. They were put away safely awaiting the day. Luckily Jack is still with us and currently lives with the Statfold Collection.
That wasn’t the end of it! An outing to the Roundhouse Factory open day with friends from Beamish three (I think) years ago found a stall selling off parts they had supplied to a builder who had passed away. I hadn’t gone with the intention of buying anything but there was the boiler needed at a very advantageous price, as new, and with all its certificates. A whip round amongst the group was held and a boiler acquired. That was put away for when the day came but it still wasn’t a loco.
Next was a chance comment from a customer that revealed that Model Engineers Laser was closing down. One of the third party suppliers that stepped up was MEL and instead of getting Roundhouse frames and modifying them they did a laser cut set with all the mods done. Better still they did them all welded up thus sorting the assembly. I had talked to MEL when I got the boiler and intended to get the frames when I started so the news they were closing caused a bit of panic. (they aren’t now closing, its changing hands).
A quick e-mail elicited that I wasn’t too late, was just in time and that they could do me a set. They arrived yesterday so now Jack is born
The pedants amongst you will note that so far I have built nothing and have just been shopping. There is a bit more shopping to do as cash allows but Jack is born.